
Joanna Firestone was born in 1986 to Jewish parents Fred and Marilyn Firestone. Growing up as teenager, Jo would have cake baking competition with her friends including renowned pastry chef Claire Saffitz. She once won the competition with Box St. Louis butter vs. Claire’s $50 chocolate cake She has a brother, Ben Firestone, who works in commercial real estate. She grew up in Clayton, Missouri, a suburb of St. Louis. She graduated from Clayton High School and later Wesleyan University in Connecticut, with a degree in theatre.

Never Change!
2026 · as Amelia Nadler

Cicada
2021 · as Tracy

Save Yourselves!
2020 · as Desi

Together Together
2021 · as Tamara

Don't Think Twice
2016 · as Jo

Aqua Teen Forever: Plantasm
2022 · as Felicity in IT (Voice)

Vanilla
2019 · as Samantha

To the Moon
2019 · as Mom

Observatory Blues
2017

Gold and Mud
2023

Good Timing with Jo Firestone
2021 · as Self

Rate the Cookie
2020 · as Self

The Hawkins Family Yule Log
2017 · as Grandma

Joe’s Pub Presents: A Holiday Special
2016

The Singles Retreat
2023 · as Concierge 1

Matt Rogers: Have You Heard of Christmas?
2022 · as Katie (Agent)

How Many Farts Measure a Life?
2017 · as Resident Angel

Jo Firestone: Comedy Central Stand-up Presents
2017 · as Self